// Copyright (c) 2022-present, Shanghai Yunxi Technology Co, Ltd. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// This software (KWDB) is licensed under Mulan PSL v2.
// You can use this software according to the terms and conditions of the Mulan PSL v2.
// You may obtain a copy of Mulan PSL v2 at:
//          http://license.coscl.org.cn/MulanPSL2
// THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
// EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
// MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
// See the Mulan PSL v2 for more details.

package tree

// ReplicationControl represents a REPLICATION START statement.
type ReplicationControl struct {
	Command ReplicationCommand
}

// Format implements the NodeFormatter interface.
func (node *ReplicationControl) Format(ctx *FmtCtx) {
	ctx.WriteString(ReplicationCommandToStatement[node.Command])
	ctx.WriteString(" Replication; ")
}

// ReplicationCommand determines which type of action to effect on Replication.
type ReplicationCommand int

// ReplicationCommand values
const (
	StartReplication ReplicationCommand = iota
	PauseReplication
	ResumeReplication
	DropReplication
)

// ReplicationCommandToStatement translates a Replication command integer to a statement prefix.
var ReplicationCommandToStatement = map[ReplicationCommand]string{
	StartReplication:  "START",
	PauseReplication:  "PAUSE",
	ResumeReplication: "RESUME",
	DropReplication:   "DROP",
}
